Fuse.



H. M. COGAN.

FUSE.

APPLlcAnoN FILED APR. 1a, 19u.

1 ,278, 1 1 O. Patentedsept. 1o, 191s@ @L r 1T/15 HENEY-MANNING coGAN, or EnooKLYN, NEW Yom;

. FUSE.

specification of Letters raient. Patented Sept 1918.

Appiication inea prix 13, i917. serial No. 161,885.-

To all whom it mayo-onorare.:

Be it known that I, HENRY MANNING progresses.

COGAN', a citizen' of the United States, and resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Fuses, of which the following is a specification.

The device, thesubject of this invention may be more definitely termed a refill-able fuse for electric circuits of comparatively small current.

This fuse is of the so called cartridge type wherein a cylinder of non-conductive niaterial is closed by caps of metal and between these metallic caps and interior of the nonconducting cylinder a. fuse link is arranged.

The ,principal object of my invention is to so construct tliecartridge that the link or fuse vproper may bechanged or a new link inserted when an increase of current has burned out or disrupted the link contained in the fuse.

The means for accomplishing the desired results and the construction of the device.

will be -fully set forth as .the specication The following is whatI consider .a good means of carrying out this invention and,

the accompanying drawings should be re.

ferred to for a complete understanding of the specification which follows In the drawing.

Figure 1 shows a side elevation of a complete device,

Fig. .2, a central longitudinal section thereof.

Fig, 3, an endy elevation. Fig. 4:, an end elevation partly in section. Fig. 5 shows a side elevation with one cap removed.

Similar reference numerals indicate like part-s in all the figures where they appear. My fuse is constructed in a manner very similar to the ordinary cartridge fuse and is therefore provided with a cylinder l, of non-conducting" material of any desired nature. Arranged one at each end of the cylinder 1, are cupped shaped members and 3 formed of metal and4 these cupped shaped members project over the cylinc er l, to a considerable extent.' g l Contact with this cartridge fuse lis made by means of cli )s 'not shown which engage around the mein ers 2 and 3.

'Each of the members 2 and 3.are perfo-V rated and in the perforations I introduce p and-'these blocks 6 and 7 are provided with screwthreaded perfoijations into which the screws 4C and 5 areintroduced.

Each of the blocks are also 'provided with Vprojections or truimions 10 and l1,v which are received in slots or recesses which enter from each end of` the tubular` member l',

The fuse or link shown at l2 has each of its ends inturned at 13 and 1I and these inturned ends ai'e perforated and rest upon the outer faces of the blocks 6 and T. It is obvious that the link l2 is placed in position before the screws I and 5 are introduced and that when the .screws are entered through the perforations in the caps 2 and 3 through the endsl and l-.L of the fuse link 12 and into the screw threaded perforations of the blocks 6 and, 7 and are tightened into the blocks, the blocks will be drawn outward and the ends of the lfuse link will be clamped securely between vthe blocks 6 and 7 and their 9also serve to prevent the caps 2 and 3 being blown oif or displaced, when the fuse link l2 is disrupted or broken.

I kmay weaken the -fuse link to provide a blow\point and Imay change or increase or diminish the size of any of the parts and other modifications may be made within the scope of the appended claims.

Having carefully and fully described my invention what I cla-ini and desire. to secure by Letters Patent is s s A 1. A cartridge fuse having a cylinder, a

cuppedshaped memberat each end thereof,. blocks wholly within said cylinder and move 105' ably secui'edtherein and a fuse link adapted to be engaged between said blocks and their adjacent cupped shaped; members.

' 2. A cartridge fuse vhaving an insulating casing provided with Slots and a perforation at each end thereof, contact membersoiie'at each end of said casing, blocks supported within said casing and interior of are supported in po the ends thereof, said blocks having pro; jections adapted to enter said vslots to move' therein, a screw passing through 'each of said contact members and into a block, a fusey link each end of which is engaged by -,the movement of onevof said blocks and projections from said blocks and engaged the Wall of said casing to limit the movement of said blocks. ,1.9i

.:s'lots and perforations, contact members supported by Hsaid casing, a plurality of blocks 3. Afuse having `a casing provided with in said casing, trunmons uponsaid blocks and adapted to be received in .said slots, and vprojections from the inner end of said locks adapted to engage perforations in said casing to retain said blocks in position, a fuse link received upon said blocks as herein specified.

4. Anfinclosed fuse having a casing contact members arranged at each end thereof,

bloqkswithin said casing and interior to the endfthereof, each block being provided with an integral projection entering the wall' of said casing, trunnions upon said blocks for 'supporting said blocks, a fuse link engaged between each said block and .the Contactv member adjacent theretdandscrews extending parallel with the axis of said casing forA clamping the ends of said 4fuse link into 'electrical Contact with said Contact memcasing, trunnions upon said block adapted to be received in said slots, and a projection from said block adapted-to engage said perforation to retain said blockiin position, and a fuse link received upon said block as hereinl specified.

Signed at New York city, in the county and State. of New York, this 2nd day of April, 1917.

HENRY MANNING COGAN.

Witnesses:

G. E. S. MARR, ARTHUR PHELPs MARR. 

